Isabella uses the equation V = one-third (12) squared (9) pi to find the volume of the cone below.

A cone has a height of 9 centimeters and base of 12 pi centimeters squared.

What is Isabella’s error?

A. Isabella should have divided 12 by 2 before squaring to get V = one-third (6) squared (9) pi.

B. Isabella should have squared 9 instead of 12 to get V = one-third (9) squared (12) pi.

C. Isabella should have divided the product of 12 and 9 by 3 to get V = StartFraction 12 (9) Over 3 EndFraction.

D. Isabella should have divided the product of 12 pi and 9 by 3 to get V = StartFraction 12 pi (9) Over 3 EndFraction